Soyuz TM-7

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Mission emblem
Mission emblem
Mission dates
Mission: Soyuz TM-7
COSPAR-ID : 1988-104
Spacecraft: Soyuz 7K-ST (GRAY index 11F732)
serial number 57
Dimensions: 7000 kg
Launcher: Soyuz U2 ( GRAY index  11A511U2)
Call sign: Донба́сс (" Donbass ")
Crew: 3
Begin: November 26, 1988, 15:49:34  UTC
Starting place: Baikonur 1/5
Space station: Me
Coupling: November 28, 1988, 5:15 p.m. UTC
Decoupling: April 26, 1989, 23:28:01 UTC
Landing: April 27, 1989, 02:57:58 UTC
Landing place: 140 km NE of Djeskazgan
Flight duration: 151d 11h 8min 24s
Earth orbits: ≈ 2450
Rotation time : 88.8 min
Apogee : 235 km
Perigee : 194 km
◄ Before / After ►
Soyuz TM-6
(manned) 		Soyuz TM-8
(manned)

Soyuz TM-7 is the mission name for the flight of a Soviet Soyuz spacecraft to the Soviet Mir space station . It was the seventh visit by a Soyuz spacecraft to the Mir space station and the 83rd flight in the Soviet Soyuz program.

crew

Starting crew

Substitute team

Return crew

Mission overview

The launch took place on November 26, 1988 from the Soviet spaceport Baikonur in the Kazakh SSR . The start was actually supposed to take place on November 21, but was postponed so that the French Prime Minister François Mitterrand could attend it. During their stay on the Mir, Chrétien and Wolkow undertook spacecraft missions that lasted five hours and 57 minutes. They served the installation of a rack of five samples studies, among other things, for the Hermes program of the ESA were determined. The ERA experiment was also installed.

Wolkow and Krikaljow flew to the Mir to replace Titow and Manarow, while Chretien only worked on board the station for three weeks. During this time experiments were carried out on 16 complexes. Topographical and spectrographic recordings of the earth's surface were made, X-ray astronomical research was carried out, and biological and medical examinations were carried out. This included blood tests, observations on the interaction of eye and muscle functions, the examination of the adaptation to weightlessness and cardiac activity. In addition, the cosmic radiation inside the station was measured.

The fourth permanent crew then completed an extensive research program with more than 5000 individual experiments in the fields of X-ray and ultraviolet astronomy as well as spectroscopy, solar and atmospheric research, earth exploration, medicine, technology, biology and materials science. Individual strong X-ray sources were observed with the X-ray telescope, including Scorpio X-1 , Centaur X-3 , the Supernova 1987A , pulsars in the constellation Segel and in the small Magellanic Cloud . With the UV spectrometer and the Glasar telescope in the Kwant module , individual areas of the sky in the constellations Southern Cross , Auriga , Kassiopeia and Puppis were examined. Star spectra were also recorded. This was also done several times with the Supernova 1987-A in order to be able to determine a temporal change in its spectrum. Further study objectives were the determination of environmental pollution, the density of the ozone layer and the effects of high-energy radiation on the earth's atmosphere. The formation of charged particles was investigated in the high atmosphere. Again many photographs and spectra of parts of the earth's surface were made. Medical research concerned the adaptation to weightlessness, blood circulation, blood pressure and composition especially in the sensory organs and the vestibulator system, the calcium loss of the body and the cardiovascular system by the doctor Polyakow. Furthermore, plant growth in weightlessness was investigated, high-purity biologically active preparations were made, optical glass melts were produced and new semiconductor materials and metal alloys were tested. In addition, the electronic system on board the station was expanded, new systems for climate control were installed and maintenance work was carried out. Necessary materials and supplies were delivered with the transport spaceships Progress 38 to 41. After the research work was completed, the station was placed in an automatic operating mode.

The landing took place on April 27, 1989 after 2450 orbits around the world around 140 kilometers northeast of Dscheskasgan in what is now Kazakhstan . The flight lasted 151 days, eleven hours, eight minutes and 24 seconds.

See also

Web links